Prestack reservoir inversion technique

In addition to the acoustic impedance, the prestack inversion based on the gather data introduces a series of processes such as Vp/Vs ratio and density parameters, accurate curve correction, petrophysical modeling and analysis, gather optimization processing quality control, speed optimization, and stack of prestack gather, laying a solid foundation for the pre-stack inversion. The combined interpretation of the acoustic impedance and the Vp/Vs ratio guided by rock physics study can effectively distinguish lithology, rock properties and even fluid properties.

Gather Conditioning is guided by synthetic record based on s-sonic data from rock physics forward.

Accurate well seismic input, as well as reasonable speed and geological model, ensure the reliability of reservoir inversion. The rock physical template can effectively guide the quantitative interpretation of inversion reservoirs, provide geologists with more intuitive lithology, physical properties, oil and gas bearing results, so to reduce the drilling risk of exploration and development production.

Rock physics guides the quantitative characterization of reservoir by pre-stack inversion results